The 6870 is a good value @ ~ $150, but the GTX 560 1gb (336 core version) is slighlty faster.
The Gigabyte GTX 560 can be found for $148 (ar) at DirectCanada
PM NCIX or, MemoryExpress will beat the price by 25% of the difference;
199.99-168=31.99 difference x .25= $8.00 off the $168 price = $160 - $20 MIR = $140 (plus tax on the $160).

I think NASA used to use 480 as a space heater, or a toaster type thing, and NASA certainly NEVER landing a human on the moon, I used to believe that non-sense. But in the last year I started to look at the work of the skeptics, and now I don't think they did it(walked on the moon).